Pump It Up!
Pumps and compressors, like bearings, are used in all kinds of different industries and in every corner of the globe. From food processing to papermaking, agriculture to construction, they pop up everywhere you need to move a liquid or a gas from one place to another.
We saved them over €28000
Specific applications vary wildly, but in one particular instance NSK was called in to help a petrochemicals refinery deal with issues around a critical centrifugal pump. The refinery reported that the bearings fitted to the pump were failing frequently. NSK was consulted and performed a Bearing Failure Investigation which showed that the existing roller bearing set up was experiencing roller skidding due to insufficient radial load. Further investigation revealed that the customer had recently changed the motor drive from belt to direct drive. This had resulted in the removal of the belt load and a consequential reduction in radial loading.
"...HPS bearings offered more than three times the lifespan of the conventional bearings they had replaced"
Taking all of this into consideration NSK engineers proposed an alternative set-up using NSK HPS Deep Groove Ball Bearings. These bearings, designed to offer both high accuracy and high speeds, are well suited to the world of pumps and compressors, as well as other sectors with similar demands such as electric motors and fans. Available in open and shielded configurations, these bearings come with a steel cage, improved running accuracy, improved material cleanliness and an optimised internal design. Nevertheless, they are interchangeable with standard Deep Groove Ball Bearings.
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A trial period using the new configuration demonstrated that the HPS bearings offered more than three times the lifespan of the conventional bearings they had replaced. In fact, there were no breakdowns at all over a period of 12 whole months, meaning the refinery experienced a significant reduction in maintenance costs and a substantial improvement in terms of productivity. Implementing these improvements saw the refinery save almost €28,000 per year, simply by swapping out their bearings for alternatives better suited to the job at hand.
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